ceo well



5 Sheets-Sheet 1 L. O. GROWELL.

SHEET REVERSING APPARATUS.

(No Model.)

Patented June 29, 1886.

N. PETERS, vnaivulna n her, Waahingmn. D. C.

5 L L E 0 R G G L SHEET REVERSING APPARATUS.

Patented June 29, 1886.

ANIQ I crowell/ N. F'ETER5 Pholo-Lilhngupher. Washmglom o. c

(No Model.)

5 Sheets-Sheet 3. L. O. OROWELL.

SHEET REVERSING APPARATUS.

No. 344,352. Patented June 29, 1886.

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA Q AAA AAA QAAAAAAAAAAA a.

AAAAAAAAAAAAAAAAAAAAAAAAAA A AAAAAA 1 aAAAAkAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A M. aA,

N. PETERS. Phnwmnp m hav. Washin ton. D. c.

(No Model.) 5 Sheets-Sheet 4.

L. G. CROWELL.

SHEET RBVERSING APPARATUS.

No. 344,352. Patented June 29, 1886.

N PETERS Pholo-L'Mwgrnpher. Wmhipgmn. D. c.

'(No Model.) 5 Sheets-Sheet 5. L. C. GROWELL.

SHEET REVERSING APPARATUS. No. 344,352. Patented June 29, 1886.

LAG/[ 77625 525 //7 \/E/771. 7/", Y L. (111710111366 %wv%J7// F'.PETERS. Piclo'Lilhflghphur. Walhinginn, D. K.

NITE'D. STATES LUTHER O. CROl/VELL, OF BROOKLYN,

ASSIGNOR TO B. HOE & CO., OF NEV YORK, N. Y.

SHEET-REVERSING APPARATUS.

SPE I I A ION forming part of Letters Patent No.344,352, datedJune29,1886. Application filed January 20, 1883. Renewed September 2,1895. Serial No. 176,008. (No model.)

which the forms for printing both sides of the web are arranged tofollow each other in succession around the circumference of asinglecylinder, and in which the web, after being printed upon one side, isturned and represented to the cylinder, so that both sides of the webreceive the same printed pages, but arranged in such order that theoutside pages of the sheet upon one side of the web fall opposite theinside pages of the sheet upon the other side of the web, and viceversa.

In machines of this class the columns of matter in the forms may lieeither longitudinally or eircumferentially'of the form-cylinder; but ineither case, as will readily be seen, only one-half of the sheetssevered from the web will have their outside pages uppermost. WVhen theforms for printing both sides of the sheet occupy the wholecircumference of the form-cylinder, the alternate sheets will have theiroutside pages uppermost; but, when the forms occupy less than the wholecircumference of the cylinder, which is usually the case when thecylinder is made of sufficient size to carry the forms in type, andadditional impression-cylinders are employed, so that each form acts twoor more times upon the web at each revolution of the form-cylinders,instead of the alternate sheets bearing different printed matter upontheir upper surfaces it is the alternate series of two or more sheetsthat are so printed. This lack of uniformity in the 'position of thesheets issuing from the machine makes it necessary, if the sheets are tobe flown, to provide two flies acting in opposite directions and meansfor directing the 50 alternate sheets or series of sheets to said flies,

so that all those havingt-he same printed pages upon their uppersurfaces will be delivered to the same fly, or if the sheets are to befolded,

to provide two folding mechanisms arranged to fold the alternate sheetsor series of sheets in opposite directions. For the sake of economy andcompactness in the construction of the machine it is of courseldesirableto dispense with this extra delivery apparatus and send all of thesheets to a single mechanism, and it is the object of the presentinvention to provide means by which this can be accomplished.

To this end the invention consists in means arranged, as hereinafterdescribed, by which the alternate sheets or series of sheets severedfrom the web are reversed, so that all pass to the fly or foldingmechanism headed in the same direction and with the same printed pagesuppermost.

In the accompanying drawings, Figures 1 and 2 are opposite sideelevations of the reversing apparatus. Fig. 3 is a plan vievt and Fig. 4a front elevation of the same. Fig. 5 is a diagram showing the order andposition of the printed pages upon a web perfected as described; andFig. 6 is a like view showing the order and position of the printedpages after one-half the sheets have been reversed.

Referring to Figs. 1 and 2, letit be supposed that the web, perfected inthe manner illns trated in Fig. 5, has been severed upon the lines x xand the sheets separated from each other in their line of travel toprovide working-spaces by any approved device for that purposeas, forinstance, the well-known accelerated tapes and pulleysbefore they arriveat the bite of pulleys l 2.

Leading from the pulleys l 2 to the pulleys 3 4 are two pathways,preferably of equal or substantially equal lengths, thelower of which isformed by the series of tapes 5 6, guides 7 8 9, and the switch 10, theupper being formed by .the series of tapes 11 l2 13 14., guides 15 1617, and switch 10. One of these pathways 5 (the lower one, as shown) isso arranged that the sheets passing through it will not be turned orreversed, while the other pathway is provided with a sheet turning orreversing apparatus, consisting, as shown in the present case,

1 rear of the second sheet, which, as just deof ordinary turning-bars bywhich the sheets passing through it are turned over or reversed.

The series of tapes 6 pass around pulleys 18, beneath pulleys 19, aroundpulleys 20, and return around pulleys 21; while the series5 pass aroundpulleys 22, beneath pulleys v19, around pulleys 23, returning aroundpulleys 24. The series of tapes 11 pass around pulleys 25, beneath anangularly-arranged turning-bar 26, around pulleys 27, mounted upon ashaft, 28, arranged parallel and in close proximity to a secondangularly-arranged turning-bar, 29, and return around pulleys 30. Theseries of tapes 12 pass around pulleys 31, also mounted upon shaft 28,and pulleys 32, mounted upon a shaft, 33, also parallel with and inclose proximity to the turning-bar 29. The series of tapes 13 passaround pulleys 34, also upon the shaft 33, over a thirdangularly-arranged turning-bar, 35, around pulleys 36, returning abovepulleys 37. The series of tapes 14 pass around pulleys 38, beneath thebar 26, around the bar 29, above the bar 35, around pulleys 39,returning around pulleys 40 41.

The shafts of the driving-pulleys for the various sets of tapes justenumerated will be connected with each other and with the printingmechanism or other source of power by gearing suitably proportioned togive them the required speed, and the switch 10 will be provided withthe usual devices for causing it to oscillate at the proper times.

As the first sheet passes from between \the pulleys 1 2 the switch 10will be operated so as to direct it into the upper pathway, where itwill pass forward between the switch and guides 17 into the bite of thetapes 11 14, and will be conveyed by them upward around the bar 26,thence outward to the bar 29, around which it will be conveyed by thetapes 12 14, thence inward and upward around the bar 35, after which itwill pass between guides 15 16 into the bite of pulleys 3 4. Byfollowing the sheet through the path just described it will be seen thatit has been reversed, so that the side bearing pages 4 1, which wereuppermost andnext the tapes 11 as it entered the path, as shown in Fig.5, is now, as it leaves the path, underneath and next the tapes 13, asshown in Fig. 6. The second sheet will follow the same course and be inlike manner reversed, so as to pass between pulleys 3 4 with its pages 32 uppermost. As the third sheet passes from between pulleys 1 2, theswitch 10 will have been operated so as to guide this sheet into thelower pathway, where it will pass forward between tapes 5 6 and enterthe bite of pulleys 3 4 immediately in the scribed, has been reversed,and the fourth sheet will follow the same course, so that all will passin succession to the fly or to a subsequent folding mechanism in theorder shown in Fig. 6. As the fifth sheet passes from between pulleys 12, the switch will have been again operated so as to direct this sheetinto the upper pathway, where it will be reversed, as just described,and so the operation will be repeated. When the alternate sheets havetheir outside pages uppermost, the switch will direct the first sheetinto the upper pathway, the second into the lower pathway, the thirdinto the upper pathway, and so on, the result being that alternatesheets are reversed and all thus caused to be presented with like pagesuppermost to whatever mechanisms areto further operate upon them.

Although it is preferable that the two pathways should be of the samelength, in order that the speed of the sheets passing through them maynot be changed or varied, yet this is not essential. One of the pathwaysmay be slightly longer than the other, in which case its tapes will bedriven at a correspondingly increased speed, so that the sheets will bepresented in proper succession to the pulleys 3 4.

If in any case it should be desired to associate two succeeding sheetsor sets of sheets, it may be accomplished by simply increasing thelength of one of the pathways, so that the two sheets will arrivesimultaneously at the exit.

The angular relation of the bars 26 29 35 may be considerably variedfrom that shown without departing from the invention. They may, forinstance, be arranged in either of the ways shown in United StatesLetters Patent No. 212,444, although, for convenience of taping, thepresent arrangement is to be preferred.

What I claim is- 1. The combination, with two pathways leading from acommon entrance to a common exit,-and means for directing sheetsalternately into said pathways, of a turning or reversing apparatuslocated in one of said pathways, whereby the sheets passing through saidpathway are turned over or reversed, all substantially as described.

2. The combination, with moving tapes forming two pathways leading froma common entrance to a common exit, of a switch arranged to control theentrance to said pathways, and turning-bars, as 26 29 35, arranged inone of said pathways and operating to reverse the sheets passing throughsaid pathway without changing the direction of their travel, allsubstantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

LUTHER C. OROWELL.

